Apparatus for pickling and washing metal plates.



G. MESTA.

APPARATUS FOR PIGKLING AND WASHING METAL PLATES. APPLICATION FILED JULY 24, 1909. 935,6 1 9 I Patented Sept. 28, 1909;

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wrrNEssEs v INVENTOH e. MESTA.

APPARATUS FOR PIGKLING AND WASHING METAL PLATES,

APPLICATION FILED JULY 24, 1909.

935,619, Patented Sept.28, 1909.

2 SHEETS-SHEET 2.,

| WITNESSES I INVENTCR Mikey M um.

GEORGE MESTA, F PITTSBURG, PENNSYLVANIA.

APPARATUS FOR :PICKLING Am: WASHING METAL PLATES.

Specification of Letters Patent.

Patented Sept. 28, 1909.

Application filed July 24, 1909'. Serial No. 509,258.

To all whom it may concern.

Be it known that I, GEORGE MEsTA, of Pittsburg, Allegheny county, Pennsylvania, have invented a new and useful Apparatus for Picklin and \Vashin Metal Plates, of which the, Qllowing is a ull, clear, and ex act description, reterence being had to the aecompai'iying drawings, forming part of this specification, in which- Figure 1 is a view partly in side elevation and partly in vertical section of apparatus embodying my vertical section the piston rod for said rod.

My invention relates to apparatus for. pickling and washing metal plates of the general character described andclaimed in my Patents Nos. 484,664 of October 18th, 1892, and (302,686 of April 19th, 1898. In the use of the apparatus described in said patents, it has been found necessary, in View of the eccentric character of the loading to which the plunger is subjected, to provide the plunger rod with guide bearings above the apparatus, these guide bearings having been usually carried by the building structure in which the apparatus is em loyed. This arrangement has proven objectionable in some cases, for the reason that where it is desired to employ overhead cranes in connection with the apparatus, which must traverse the building ranged, free head room or space above the apparatus is necessary for the travel of the crane, and this is interfered with by the provision of the upper guides above referred to. It has also been found ditiicult to maintain the proper alinen'ient between such upper guide bearing and the lower bearing proinvention; and Fig. 2 is a showing the motor cylinder, and piston, and the bearings vided in the apparatus, these two bearings being carried by separate structures. My present invention is designed to overcome these difliculties, and it provides an apparatus of this character which shall be selfcontained, and in which the extended bearing is provided within the apparatus itself for the piston or plunger rod.

Referring to the drawings, the numeral 2 designates the vertical single acting cylinder of the machine, having therein the piston 3 secured to the piston rod 4.

5 is the spider, which is secured to the up per end of the piston rod, and which is proin which the apparatus is arvided with two or more arms, as may be desired, from which are suspended the usual crates 6. a

7 designates the pickling and washing vats, Within which the crates are actuated.

8 and 9 designate valve actuating mechanism for the cylinder 2, which mechanism may be in all substantial respects similar to that described and claimed in my said Patent No. 602,686.

In accordancew'ith. my present invention, I provide the hollow supporting base 10 of the apparatus with the interior elongated downwardly extending sleeve portion 10 through which the tail end ofthe piston rod 4 extends. This extension is preferably provided with the interior bushing 11 and with the ring or gland 12 forming a stutiing or packing box for said rod. The hollow base 10 has ht uter wall provided with one or more dooisdO through which ready access to its interior ma be provided. Said base is otherwise pre erably closed to prevent splashing of acid into interior. The tail portion of the piston rod is extended downwardly through this base into a suitable pit 13 within the supporting foundation 14.

The upper end of the cylinder 2 is provided with a. head 15 having an elongated sleeve or flange portion 16 provided with the bushing 17 and gland 18.

The advantages of my invention will be readily apparent. By providing the cylinder and upper and lower elongated bearings for the piston rod, I am enabled to do away with upper guides above the apparatus, thereby rendering the apparatus self-contained and giving free head room above it. Both the upper and lower uides being carried by the apparatus itsel the difliculty of maintaining their proper alinenient is largely obviated. The strain on the piston rod, instead of being transmitted to the piston and cylinder walls, which has heretofore largely occurred, is transmitted directly to the elongated bearings, thus largely reducing the wear 011 the piston and cylinder rod.

It will be obvious that various changes can be made in the details of the construction and arrangement of the parts without. departing from the spirit and scope of the invention as defined in the appended claims. Thus, the upper and lower bearings for the piston rod may be of difierent specific character from that shown, and various other changes may be made.

That I claim is 1. In apparatus of the character described, the combination of a cylinder, :1 iston rod working therethrough, and a base orming a support for the cylinder, said base having an elongated bearing for the piston rodbelow the cylinder; substantially as described. i

2. In apparatus of the character described, the combination of a cylinder containing a piston, and a piston rod extending through the cylinder, asupporting base for the cylinder, bearing for the tail extension of the piston rod, and the cylinder also having at its upper end an elongated bearing for the piston rod substantially as described.

3. In apparatus of the character described, the combination of a hollow supsaid base having an elongated porting base, a vertical cylinder supported thereon, a piston rod extending through said cylinder and base, and a piston secured to the rod within the cylinder, said base having an elongated bearing for the piston rod, and the cylinder also having at its upper end an elongated bearing for said rod; substantially as described.

4. In apparatus of the character described, a c linder, a hollow supporting base for said cy inder, said base being closed laterally and having a doorv giving access thereto, and a piston rod extendin through.

the cylinder, and a base having t erein an elongated guide bearing for said head; sub-' stantially as described.

In testimony whereof, I have hereunto set my hand.

GEORGE MESTA. Witnesses J. O. HoRnING, G. E. TOWNSEND. 

